Pencil.



PATENTED APR. 2l, 1908.

P. THOMPSON.

PENCIL.

APPLIOATION FILED JAN.17. 190s.

rn: Numus PsERs co. vusnmamn. u. c.

FRANKLIN THOMPSON, OF BROOKLYN, NEW YORK.

PENCIL.

Specification of Letters Patent.

Patented April 21, 1908.

Application filed January 17, 1908. Serial No. 411,266.

To all whom it may concern.'

Be it known that l, FRANKLIN THOMPSON, a citizen of the United States, residing at Brooklyn, in the county oi Kings and State of New York, have invented a certain new and useful Pencil, of which the 'following is a specification, reference being had therein to the accompanying drawing.

This invention relates to pencils and the object of the invention is to provide a pocket pencil by means oi which a good point may be maintained without the necessity ol repeated sharpening, the construction of the pencil being such that as the lead wears away the point of the pencil lead may be quickly and easily advanced to give the requisite projection for Writing purposes. YV ith equal ease the lead may be pushed back into the body of the pencil when not needed thereby obviating the lead while in the pocket or when the pencil is accidentally dropped.

Much time and annoyance is saved in the use of the pencil hereinafter particularly described, the body of the pencil is always of the same length, and any kind of lead or writing substance in stick form may be used.

Vith the above and other objects in view, the nature of which will more fully appear as description proceeds, the invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

Inthe accompanying drawings;-Figure l is a plan view of a pencil embodying the present invention. Fig. central longitudinal section through one end of the same. Fig. 3 is a cross section through the encil.

T ie body of the pencil resembles that of an ordinary pencil, but in carrying out the present invention said body is divided longitudinally'anl centrally or approximately so into two halves or similar pieces as indicated in Fig. l. These pieces designated l and 2 are normally held together at both ends so as to confine the lead between them, the said sections being grooved lengthwise to iorm a pocket or channel in which the lead is received and along which it may be fed or shifted to give it the requisite projection for writing purposes.

At one end the pencil sections 1 and 2 are removably held together by a head piece or iferrule 4, preferably of the same external diameter as the body of the pencil, the latter liability of breaking off the.

2 is an enlargedv being reduced and shouldered to permit the head piece or 'crrule to be slipped over it.

The opposite end of the body is reduced as shown in Fig. 2, forming a shoulder 5, and such reduced portion of the pencil tapers gradually the point, and just before reaching the point of the pencil the extremity of the body is given a more decided or abrupt taper as shown at 6. This reduced portion oi' the body is also threaded as shown at 7, and it will be noted that the threads 7 start from a point immediately adjacent to the shoulder 5 and gradually diminish therefrom and 'Finally disappear at a point intermediate the shoulder 5 and the extremity of the body, merging into the taper of the reduction. The meeting faces of the sections l and 2 are also slightly cut away to form a slot S which adds to the flexibility of the points of the sections for clamping the lead as will hereinafter apear. p 9 designates a cap piece or nut which screws on the reduced portion of the pencil, the same having a tapered and threaded bore corresponding exactly with the'body of the encil, as shown in Fig. 2, and also having a shoulder l0 formed by the inner end thereof which bears tightly against the shoulder 5 of the body, whereby the threads of the body and cap or nut are caused to bind tightly upon each other, when the cap is in its place. The outer end oi the cap 9 is tapered coincidently with the extremity of the body as shown at 11, thus giving the proper taper to the end of the pencil as a whole.

By slightly loosening the cap piece or nut 9, the lead may be drawn outward or pushed inward and in that way adjusted to suit requirements, after which the cap piece or nut is again tightened, thus 'fixing the adjustment. The expedient described e'l'l'ects a saving in time as compared with the old plan of sharpening a pencil; the pencil always remains the same length, and any kind of lead or writing material in stick form maybe used.

Any suitable material 'may be employed in the manufacture of the several parts ol the pencil hereinbei'ore described.

I claim:-

A pencil the body of which comprises a plurality ol' strips separable throughout their length and grooved to receive the lead, one end of the body being reduced and shouldered and tapered from the shoulder toward the extremity which is pointed, such re- Vl'rom the shoulder outward toward duced th th part being provided with a screwread Which starts from a point adjacent to e shoulder and gradually diminishes therefrom and disappears at a point intermediate e shoulder and extremity of the body; a having a corresponding shoulder, intertaper and thread and having the same outside diameter as the body and also pointed i coineidently with the body; and means for confining said strips at the opposite end.

In testimony whereof I aiix my signature in' presencev of tWo Witnesses.

FRANKLIN THOMPSON. i Witnesses: HERMAN RICHTER,

JOHN P. GRIEBEL. 

